Halo Nation

Contingency Plan: TANGO

10,043pages on
this wiki
Add New Page
Talk0 Share

TANGO was an ONI contingency plan. It was initiated during preparations for Operation: HYPODERMIC, when it was discovered that an AI had breached their defenses and was aware of their plan.

As such, the Circumference has her registration number scrambled, her computer core isolated from the station's computer, and software activated to cease any more AI activity. To the station's computer, the Circumference never existed.[1]

List of appearancesEdit


  1. Halo: Fall of Reach, pages 281-282

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.